petrochemicals

The thick, flammable, yellow-to-black mixture of gaseous, liquid, and solid hydrocarbons that spawns naturally beneath the earth's surface, can be separated into fractions including natural gas, gasoline, naphtha, kerosene, fuel and slipery oils, paraffin wax, and asphalt and is used as raw material for a wide variety of derivative products.
pechrochemicals come from crude oil from the ground.